Last month Special Counsel Robert Mueller conducted lengthy and voluntary interviews with former White House Chief of Staff Reince Priebus and former White House Press Secretary Sean Spicer. Both were in regard to the conversation they had with Donald Trump about how to publicly misrepresent the nature of Donald Trump Jr’s meeting with Russia. At the time it wasn’t clear where Mueller was going with this. Now it is.

Mueller has obviously been poking at that particular conversation between Trump and his advisers because that conversation may have met the legal definition of obstruction of justice. What wasn’t clear was if this was just a cursory attempt at being thorough, or if Mueller really was looking to make the legal case that Trump committed obstruction during that conversation with his advisers. Then came Monday’s news, which gave us the first truly detailed insight into how Mueller has been approaching the Trump-Russia probe from the start.

What we learned is that, simply put, Robert Mueller is going for the kill – against everyone. He’s torn Paul Manafort’s life to pieces, exposing every shady inch of his financial history while getting him placed under house arrest. Mueller also busted another Trump adviser Rick Gates, who happened to be in business financially with Manafort. Then we learned that months ago, Mueller busted Trump adviser George Papadopoulos for having lied to the FBI, and flipped the guy so forcefully that he ended up confessing to everything under the sun.

Now we know that Mueller is willing to use the full extent of the law to get where he’s trying to go. Yes, he’s willing to get people like Sean Spicer and Reince Priebus indicted for conspiracy to obstruct, failure to report a felony, or unpaid parking tickets for the matter, if they’re unwilling to give someone else up. Spicer and Priebus each gave Mueller a full day’s worth of testimony. Neither has yet been arrested – which suggests they did indeed feel enough pressure to give Trump up. We now know there’s nothing cursory about this.